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1、第26卷第1期湖北民族學(xué)院學(xué)報(bào)(自然科學(xué)版)Vol.26No.12008年3月JournalofHubeiInstituteforNationalities(NaturalScienceEdition)Mar.2008恩施州不同海拔高度植煙區(qū)氣候和土壤條件分析黎妍妍,李錫宏,李進(jìn)平(湖北省煙草科研所,湖北武漢430030)摘要:分析了恩施州不同海拔高度下植煙區(qū)氣候條件和主要土壤養(yǎng)分含量狀況的差異,結(jié)果表明:(1)各氣候因子和多數(shù)土壤養(yǎng)分含量與海拔高度呈極顯著相關(guān)關(guān)系.隨海拔高度升高,恩施州煙區(qū)煙葉生長季節(jié)氣溫降低、降雨量增大,日照時(shí)數(shù)增多,全生育期≥20℃持續(xù)天數(shù)和無霜期天
2、數(shù)逐漸減少;土壤pH值總體降低,有機(jī)質(zhì)、速效鉀和堿解氮含量增加,而速效磷含量沒有明顯的變化趨勢;(2)對海拔高度進(jìn)行分組,應(yīng)用方差分析方法研究了不同海拔高度下的氣候條件和土壤養(yǎng)分含量特征,表明各氣候因子和多數(shù)土壤養(yǎng)分含量在海拔高度間的差異達(dá)到1%極顯著水平.在恩施州現(xiàn)行煙葉生產(chǎn)管理?xiàng)l件下,1000~1400m煙區(qū)的氣候和土壤條件最為適宜植煙,1000m以下煙區(qū)較為適宜植煙,而1400m以上煙區(qū)氣溫較低、土壤氮素稍高.關(guān)鍵詞:恩施州煙區(qū);海拔高度;氣候條件;土壤養(yǎng)分+中圖分類號:S151.23文獻(xiàn)標(biāo)識碼:A文章編號:1008-8423(2008)01-0110-05Analy
3、sisofClimateandSoilConditionsinEnshiTobacco-growingAreasunderDifferentAltitudesLIYan-yan,LIXi-hong,LIJin-ping(TobaccoResearchInstituteofHubeiProvince,Wuhan430030,China)Abstract:ThedifferenceofclimateconditionsandthecontentsofmainsoilnutrientsinEnshitobacco-growingareasunderdifferentaltitud
4、eswereanalyzed.Theresultsindicatedthat:(1)Eachclimatefactorandthecontentsofmostsoilnutrientswerehighlycorrelatedwithaltitudeatthe0.01level.Withaltitudeincreasing,theaveragetemperatureduringfieldperioddecreased,totalprecipitationandtotalsunlighthoursduringfieldperiodincreased,thetimewithdai
5、lyaveragetemperatureof≥20℃intotalgrowthanddevelopingperiodandfrost-freeperioddecreased,pHvaluedecreasedasawhole,andorganicmatter,availableKandhydrolyticNinsoilincreased.ButaltitudehadnosignificantcorrelationwithavailablePinsoil.(2)AftergroupingaltitudeandbyusingANOVAmethod,thecharacteristi
6、csofclimatecondi2tionsandsoilnutrientscontentswereanalyzedandsignificantdifferenceatthe0.01levelamonggroupswasfoundforeachclimatefactorandthecontentsofsoilnutrientsexceptingavailableP.Underthealti2tudeof1000~1400m,theclimateandsoilconditionsweremostlyfavorablefortobacco-growing;thealtitude
7、below1000mwasbetter;butthetobacco-growingareaswithaltitudehigherthan1400mhadlowertemperatureandhighercontentofNinsoil.Keywords:Enshitobacco-growingareas;altitude;climateconditions;soilnutrients煙葉是卷煙工業(yè)的基礎(chǔ),其質(zhì)量好壞對卷煙品質(zhì)起著舉足輕重的作用.而煙葉質(zhì)量和風(fēng)格不僅與煙草的[1~8]品種和栽培技術(shù)措施有關(guān),氣候、土壤